Journal ArticleDOI
Optical properties of tin‐doped indium oxide determined by spectroscopic ellipsometry
Tobias Gerfin,Michael Grätzel +1 more
Reads0
Chats0
TLDR
In this article, the authors used a classical dispersion formula for the optical constants of ITO in a model structure with a compact homogeneous film and a top layer representing surface roughness.Abstract:
Sputtered tin‐doped indium oxide (ITO) coatings were investigated by UV‐visible spectroscopic ellipsometry at different angles of incidence. The results were fitted using a classical dispersion formula for the optical constants of ITO in a model structure with a compact homogeneous film and a top layer representing surface roughness. Typical values for the high‐frequency dielectric constant e∞ and the plasma frequency ωp were found to be 3.4–4.0 and 0.68–0.96 eV, respectively. The influence of oxidative and reducing annealing at 400 °C was studied. No difference was observed under reducing conditions, but oxygen annealing reduced the influence of the plasma frequency on the studied UV‐visible region significantly. To prove the usefulness of the dispersion formula, TiO2 and Nb2O5 films were grown on ITO by metalorganic chemical vapor deposition using Ti(acac)2(i‐pro)2 and Nb(OEt)5 as precursors. These bilayers were studied by spectroscopic ellipsometry and could be successfully described applying the previ...read more
Citations
More filters
Journal ArticleDOI
Effects of carrier concentration on the dielectric function of ZnO:Ga and In 2 O 3 : Sn studied by spectroscopic ellipsometry: Analysis of free-carrier and band-edge absorption
Hiroyuki Fujiwara,Michio Kondo +1 more
TL;DR: In this article, the dielectric functions of transparent conductive oxides with different carrier concentrations were derived from spectroscopic ellipsometry using the Drude and Tauc-Lorentz models.
Journal ArticleDOI
Systematic investigation of the role of compact TiO2 layer in solid state dye-sensitized TiO2 solar cells
TL;DR: In this paper, the preparation steps of solid state dye-sensitized nanocrystalline TiO 2 solar cells are optimized with respect to the blocking TiO2 layer which is one of the essential layers in such a multi-layer solar cell.
Journal ArticleDOI
Surface Plasmon Polaritons and Screened Plasma Absorption in Indium Tin Oxide Compared to Silver and Gold
TL;DR: In this article, the ability of a conducting metal oxide to act as a material capable of supporting surface plasmon polaritons (SPPs) was investigated using a two-phase Fresnel model that provides insight into the difference between polariton induced and absorptive decreases in reflectivity.
Journal ArticleDOI
Large Enhancement in Photocurrent Efficiency Caused by UV Illumination of the Dye-Sensitized Heterojunction TiO2/RuLL‘NCS/CuSCN: Initiation and Potential Mechanisms
Brian O'Regan,Daniel T. Schwartz +1 more
TL;DR: In this paper, the authors investigated the effect of varying the UV wavelength and the applied bias on dye sensitization and showed that the reaction(s) responsible for the increase in efficiency begin with the oxidation of some interface species by a photoexcited hole in the TiO2 valence band.
Journal ArticleDOI
Properties of TiO2‐based transparent conducting oxides
TL;DR: In this paper, the development and properties of titanium dioxide (TiO 2 )-based transparent conducting oxides (TCO), which exhibit properties comparable to those of In 2-x Sn x O 3 (ITO), are reviewed.
References
More filters
Book
CRC Handbook of Chemistry and Physics
TL;DR: CRC handbook of chemistry and physics, CRC Handbook of Chemistry and Physics, CRC handbook as discussed by the authors, CRC Handbook for Chemistry and Physiology, CRC Handbook for Physics,
Journal ArticleDOI
A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films
TL;DR: In this article, the authors describe a photovoltaic cell, created from low-to medium-purity materials through low-cost processes, which exhibits a commercially realistic energy-conversion efficiency.
Journal ArticleDOI
Berechnung verschiedener physikalischer Konstanten von heterogenen Substanzen. I. Dielektrizitätskonstanten und Leitfähigkeiten der Mischkörper aus isotropen Substanzen
TL;DR: In this article, the Berechnung der dielektrizitatatkonstanten and der Leitfahigkeiten fur Elektriatitat and Warme der Mischkorper aus isotropen Bestandteilen behandelt.
Book
Ellipsometry and polarized light
TL;DR: In this article, the polarization of light waves and propagation of polarized light through polarizing optical systems are discussed. But the authors focus on the application of ellipsometry in the field of measurement in ellipsometer systems.
Related Papers (5)
Evaporated Sn‐doped In2O3 films: Basic optical properties and applications to energy‐efficient windows
I. Hamberg,Claes-Göran Granqvist +1 more
Effects of carrier concentration on the dielectric function of ZnO:Ga and In 2 O 3 : Sn studied by spectroscopic ellipsometry: Analysis of free-carrier and band-edge absorption
Hiroyuki Fujiwara,Michio Kondo +1 more